Mechanical stoker



(No ModeL) 3 Sheets-Sheet 1.

SQHAIGH. Mechanical Stoker.

7 NO. 242,771. Patented June 14, 18 81.

WITNE SE5:

ATTORNEY.

{No Model.) T 3* Sheets-Sheet 2. S. III A I G H.

I Meohanioail Stoker.

No. 242,771. V Patentediiune 14,1881.

A TTORNEY' .(No Model.) 3 sheets sheet 3.

S. HAIGH. Mechanical Stoker.

No. 242,771. Patented June 14, 1881,.

. I WITNZQZZSES: INVENTOR al a '1 wwfimji ATTORNEY UNITED STATES PATENT OFFICE.

SAMUEL HAIGH, OF GARTHAGE, OHIO.

MECHANICAL STOKER.

SPECIFICATION forming part of Letters Patent No. 242,771, dated June 14, 1881.

Application filed MarchlO, 1881. (No model.)

To all whom it may concern:

Be it known that I, SAMUEL HAIGH, a resident of Carthage, Hamilton county, Ohio, have invented certain new and useful Improvements in Mechanical Stokers, of which the following is a specification.

In the accompanying drawings, Figure 1 is a front elevation of the receiving and elevating devices; Fig. 2, a front elevation of the distrihuter Fig. 3, a plan of the same, and Fig. 4 a plan of a furnace with distributer attached.

In Figs. 2 and 3, B is a plate having a feedopening, D, and hinged lugs C. It is adapted to bolt to the wall of furnace, so that the opening D will lead to an opening in the furnacewall for the admission of fuel.

E is acase hinged to the plate B by the hin gearms H. Its back closes against the plate B, over the opening D. The latchment G holds the case in closed position. The back of the case is open and the plate-openin g D thus leads to the interior of the case. The case may at anytime be unlatched and swung open, so that access to its interior may be had, and so that the interior of thefurnace may be inspected through the opening D.

Within the case E are arranged the distributers F, constructed, as usual, with disks and radial wings, to throw through the opening D any fuel which may be placed, upon them.

Q is a conduit for the passage of fuel onto the distributers. It receives fuel at It. This point is located in line with the axis of the case-hinges. The case, in being swung open, does notalter the receivingpoint R of the conduit Q.

N is the shat to which motion is applied. This main shaft may receive motion by belting or gearing from any convenient motor.

L. is a vertical shaft, whose axis coincides with the axis of the case-hinges. It receives motion from the motion-shaft N by means of bevel-gears M, though, if desired, the motion may be applied by belt direct to the shaft L, a pulley being placed at any convenient point of its length. Motion is transmitted from the axis-shaft L to the distributor-shafts I I by spur-gears J J K, as shown, though a bevelgeared horizontal shaft might obviously be used as a substitute for the spur-gears.

It will be seen that the case can be swung 'when the distributer is in use.

open without disturbing the driving mechanism, and that the distributors may remain in motion while the case is open. The axial location of the conduit-point R permits the case to be opened without disturbing any parts;

but a flexible or detachable conduit would permit the case to open without disturbing the driving mechanism. This distributing device is adapted to attach to any ordinary boilerfurnace. The usual breeching is a serious interference to the application of any of the ordinary forms of distributers.

In Fig. 4, g is the front wall, h h the side walls, 0 the firing-opening, f the fire-door the bridge-wall, and j the grate, of an ordinary boiler-furnace, arranged to fire by hand or mechanically. B is the frame-plate, and E the case, of the distributer previously described, and dis the mechanical fire-hole in the side wall. This arrangement permits handfiring when the distributer is not used. It allows A the hand-firing door to be used as a sight-hole It keeps the grate-bars parallel with the direction of handfiring and presents them crosswise to the direction of mechanical firing, so that fuel is less apt to be thrown directly between and through them. A proper fuel, like fine coal, fed into the conduit Q will be distributed to the best advantage.

In Fig. 1, Y is a receptacle for fine fuel, adapted to be carried bythe distributers. The elevator a is to take the fuel from the receptacle Y and deliver it through D to the distributer-conduit. Z is a covered opening, through which time fuel may be put into the receptacle Y. The fuel-receptacle Y is shown. as a pit below the floor-level, but may, if desired, be in the form of an above-ground structure. U U are the rolls of a crusher, constructed as usual. T is the hopper; V, the driving-shaft, transmitting motion to the crushers through Worm and gear W. Fuel too coarse to work through the distributers is put into the hopper T and is delivered into the pit Y. 1f fine coal only is used, the crushing device will not be needed, and the regulation will be affected by the quantity passed to the distributers by the elevator a. 1n case the crusher is set above the level of the distributers the elevator at will not be needed, the crusher delivering its product directly into the distributer-conduit, the distributer-shafts I I; and axial shaft L, subcrusher-rolls, whether fine or coarse coal be stantially as and for the purpose specified. used, acting as the regulator of the quantity 3. The combination ofopening D, hinge-lugs 15 of fuel fed to the distributers. 0, case E, hinged to said lugs, conduit Q, hav- 5 I claim as my invention ing axial point B, distributer-shafts I I, and

1. The combination of opening D, hinge-lugs axial shaft L, substantially as and for the pur- O, case E,hinged to said lugs, distrib uters F, pose specified.

provided with suitable driving mechanism, and SAMUEL HAIGH. the conduit Q, having axial point R, snbstan- Witnesses:

1o tially as and for the purpose specified. J. W. SEE,

- 2. The combination of openin g D, hinge-lugs WILLIAM LAWSON, Jr.

0, case E, hinged to said lugs, distributers F, 

